atwood



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W.A DRIS0OLL 8v H. D. ATWO'OD.

Mold for Cruoibl'es and Pottery.

Patented June 28,1881'.

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UNITED STATES.'

PATENT OFFICE.

WILLIAM DRISCOLL AND HENRY D. A'IWOOD, OF TAUNTON, MASS.

MOLD FOR CRUCIBLES AND POTTERY.

SPECIFICATION forming part of Letters Patent No. 243,434, dated June 28, 1881.

Application tiled November 29, 1880. (No model.)

To alt whom zt may concern:

Be it known that we, WILLIAM DEIscoLL and HENRY D. A'IWOOD, both of Taunton, in the county ot Bristol and State of Massachusetts, have invented a new and useful Improvement in Molds for Crucibles and Pottery, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, making a part thereof,in which- Figures l and 2 are perspective views, Fig. l showing the. frame and lining, and Fig. 2 the same with the backing applied. Fig. 3 is an elevation of one-half' of the frame and lining.

' in the drawings.

Fig. 4 is a vertical section, and Fig. 5 a crosssection, ofthe improved mold.

Our invention relates to that class of molds in which the molding-surface is a cloth lining; and it consists in the combination of the lining with a frame adapted to be used with a backing to sustain the lining againstthe pressure of the clay during the operation of molding.

ln the drawings, A represents the frame, B the lining, and U the backing. The frame is formed ot' top and bottom pieces, c c', connected together by the pieces a? c3 c4, and the lining B is secured by Vits edges to the top and bottom of the frame and to both sides of the fratrie, when the mold is divided lengthwise, as shown in the drawings. The metal pieces c6 al protect the edges ofthe cloth B, and also stii'en the frame, which is usually made ot' wood. 'The side edges of the lining are best secured by double-pointed or staple-shaped tacks, the pieces a2 and c4 being rabbeted to receive the side edges ofthe lining, as shown The interior ofthe backing C is formed to fit the frame and to support the lining between the bars of the frame, as

clearly shown in thedrawings. The exterior of the backing is made to'flt the head of the machine in which the improved mold is to be used, as will be well understood by all skilled in the art. 'After the lining B is secured to the frame it should be blocked to bring it to the precise shape desired. y

In practice we use two or three frames and linings A B with each backing C, in order that when the lining of one frame becomes coated with clay and unfit for use (which will happen after a dozen or so ot' pots have been molded in it) a fresh frame and lining A B may be substituted and used while the lining ofthe rst frame is washed and dried.

The main objections to the present molds, in which the lining is secured directly to the molds, are the difficulty ot' washing and drying the lining and theloss of time. Both these objections are wholly obviated by the use ot' a frame to hold the lining. Y

Ve have shown but one form ot' frame and lining, and but one form of backing, the form shown being well adapt-ed for the manufacture of a certain sort of Crucible; but it will be clear to all skilled inthe art that our invention may be embodied in a Very large number of forms, the shape of the vessel to be molded determining the general form of the mold, and the form of the mold may obviously make some modification desirable in the construction of the frame and backing.

What we claim as our invention islThe improved mold .above described, having its lining B secured to a frame, A, and

supported by a backing, C, substantially as specified.

W. DRISGOLL. HENRY D. ATWOOD. Witnesses:

G. EDGAR WILLIAMS,

J. E. MAYNADTEE. 

